Re: [lwip-users] netconn_recv sequence

[Frédéric BERNON]

> What is the behaviour of netconn_recv when received data spans multiple 
> netbufs? Will each call to netconn_recv return each subsequent buffer, or 
> do I have to see if there are chained buffers and manually process each 
> one?

The best is to look how lwip_recv (in sockets.c) handles netbufs to have a 
sample of what to do.

> BTW, what is the current status (better said, as of lwIP1.1.1) of 
> netconn_recv blocking? Does it block forever or does it unblock (returning 
> NULL) after a timeout?

In current CVS head (post 1.2.0), you can decide to enable a recv timeout to 
avoid to block forever (but it's an option).

----- Original Message ----- 
From: "Ivan Delamer" <address@hidden>
To: <address@hidden>
Sent: Tuesday, October 30, 2007 10:42 PM
Subject: [lwip-users] netconn_recv sequence


Hi All,

New to lwIP, have been searching the list and docs about this but found no 
answer.
What is the behaviour of netconn_recv when received data spans multiple 
netbufs? Will each call to netconn_recv return each subsequent buffer, or do 
I have to see if there are chained buffers and manually process each one?

BTW, what is the current status (better said, as of lwIP1.1.1) of 
netconn_recv blocking? Does it block forever or does it unblock (returning 
NULL) after a timeout?

Many many thanks for any answers.

Ivan


     
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